Tough 10mm Lock Head with CleatLocking Technology attaches to the Kensington Nano Security Slot found in select ultra-thin laptops and tablets for uncompromised security Secondary lock head with T-Bar Locking Technology offers unparalleled strength for devices featuring the industry standard Kensington Security Slot 5mm Keying System is compatible across all of Kensingtons latest locks and includes patented anti-pick Hidden PinTM Technology, all part of our robust custom key management solutions that include Master Keyed (K64449M), Single Keyed (K64449S) and Like Keyed (K64449L) options Carbon Steel Cable resists and deters cutting attempts Pivot & Rotate Cable provides superior laptop engagement Register & RetrieveTM program offers free and secure cloud-based key replacement Verified & Tested for industry-leading standards in torque/pull, foreign implements, lock lifecycle, corrosion, key strength and other environmental conditions Limited Lifetime Warranty guaranteed by the leader